Overview
The ZF 4657.055.134 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in replacement for heavy-duty powershift applications. This complete unit integrates the main gear cluster, clutch packs, and hydraulic control system within a single housing, designed for ZF’s WG 210 series. As a complete assembly, SKU 4657.055.134 eliminates the need for piecemeal rebuilding, offering a direct exchange for worn or failed transmissions in construction and agricultural machinery. It sits as the central driveline component, transferring engine torque through five forward speeds and one reverse, with power shifting capabilities for smooth, uninterrupted gear changes under load.
Symptoms of Failure
When the ZF 4657.055.134 assembly begins to fail, operators typically notice these specific issues:
- Erratic gear engagement or slipping under load: The transmission may hesitate or fail to hold a gear when pushing heavy material, often due to worn clutch packs or hydraulic pressure loss within the assembly.
- External oil leaks at housing joints: Leaks commonly develop between the main housing and the HOUS.FRONT SECT or the HOUSING REAR PART, indicating seal failure or housing fatigue.
- Delayed or harsh shifting: A noticeable lag when shifting from forward to reverse, or abrupt engagement, points to internal wear in the valve body or planetary gear sets.
- Unusual whining or grinding noises: Metallic sounds from the transmission case often signal bearing failure or gear tooth damage, requiring immediate replacement of the complete unit.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.055.134 |
| Assembly Type | Complete Powershift Transmission Unit |
| Series | WG 210 |
| Estimated Weight | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron |
| OEM Reference | ZF 5 WG 210 |
| Mounting Hardware | Includes CAP SCREW (0636100801) and CAP SCREW (0636100803) |
| Sealing Components | CYLINDRICAL PIN (0631306816) and FIXING PLATE (4656301148) |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is also compatible with the WG 180 and WG 200 series when used as a direct replacement for the complete assembly, provided the bellhousing and output flange match. The unit integrates with the TRANSMISSION HOUSING and the HOUSING REAR SECTION to form a sealed driveline. Typical applications include ZF 5 WG 210 models found in loaders, graders, and industrial tractors from manufacturers like Case, New Holland, and Volvo.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing section supporting output shaft bearings |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO or auxiliary drives |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing mating |
| 0636100801 | CAP SCREW | Fastener for securing front housing section |
| 4656301148 | FIXING PLATE | Retaining plate for clutch pack adjustment |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump return line |
| 0636100803 | CAP SCREW | Fastener for rear housing and PTO cover |
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